I can keep available certain data in a 'table' (Excel spreadsheet) which floats on-top
all the time, so I can refer to it while working in other apps.

Which functions in our program Actual Title Buttons do you use most?

The Stay Always-on-Top feature. This is offered by many utilities, but I
find windows tend to lose their on-top-ness fairly easily.
Actual Tools
seems to do a better job of maintaining it and, at least, offers a very
convenient way to restore the on-top property via the caption-bar button.
Nice work.

Occasionally the transparency feature is useful, and the Roll up feature
can be handy. These effects are offered by other utilities, but again, the
Actual Tools implementation is particularly convenient.

With which applications on your PC do you use Actual Title Buttons?

There is no consistent set of apps that I use Actual Tools
for, except possibly Excel. Actual Tools is handy for that
because I can keep available certain data in a 'table' (spreadsheet) which floats on-top
all the time, so I can refer to it while working in other apps.

What interface improvements could help make our Actual Title Buttons more usable?

No complaint there. You guys have done a good job. Hard to say how it could be significantly
improved.

Where did you hear about Actual Title Buttons?

Well, as you can gather from above, I've surfed the
Net on and off for utilities similar to Actual Tools.
Of course, Actual Tools often came up during the search.
Mostly I was looking for free tools, but Actual Tools had these advantages: